Sub-woofer



FIG. 1 is a perspective view of a first embodiment of my new design asseen from the front, top and right side of the sub-woofer;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The broken lines shown are included for the purpose of illustratingportions of the sub-woofer that form no part of the claim.

CLAIM The ornamental design for a sub-woofer, substantially as shown anddescribed.